Methylene blue trihydrate

Basic Information

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CAS Number

7220-79-3

Molecular Formula

C16H18N3S.Cl.3H2O

Molecular Weight

373.9 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Fine Chemicals Dyes and Pigments Organic Dyes

Fine Chemicals Surfactants Anionic Surfactants

Agricultural Chemicals Pesticides Herbicides

Basic Physical Properties

Melting Point

190 ºC

Boiling Point

No data available

Density

0.98 g/mL at 25 °C

Water Solubility

4 g/100 mL

Flash Point

14 °C

Solubility

Soluble in water, chloroform; sparingly soluble in ethanol

SMILES

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CN(C)C1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.O.O.O.[Cl-]

InChI

InChI=1S/C16H18N3S.ClH.3H2O/c1-18(2)11-5-7-13-15(9-11)20-16-10-12(19(3)4)6-8-14(16)17-13;;;;/h5-10H,1-4H3;1H;3*1H2/q+1;;;;/p-1

InChIKey

XQAXGZLFSSPBMK-UHFFFAOYSA-M

LogP

-0.69000

pKa

2.6, 11.2(at 25℃)

Complexity

483

Safety Information

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GHS Hazard Pictograms

H225

Hazard Statement

H225 Highly Flammable liquid and vapor
Flammable liquids

Hazard Class

Class 6.1 Class 6.1

Stability

Stable. Incompatible with bases, reducing agents, strong oxidizing agents.

Synonyms & References

English

C.I. Basic Blue 9, trihydrate
3,7-Bis(dimethylamino)phenothiazin-5-ium chloride trihydrate
Methylthioninium chloride proveblue (TN)
CAS-7220-79-3
METHYLENE BLUE [USP-RS]
METHYLENE BLUE [HPUS]
C.I. Basic Blue 9 trihydrate
Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride, trihydrate
METHYLTHIONINII CHLORIDUM TRIHYDRATE [WHO-IP LATIN]
Methylene Blue, high purity, biological stain
DTXSID0025600
7220-79-3
Tox21_202525
7220-79-3 (hdyrate)
methylthioninium chloride trihydrate
Methylene Blue trihydrate
Methylene Blue Trihydrate, Certified by Biological Stain Commission
BS-42699
METHYLENE BLUE [ORANGE BOOK]
NCGC00260074-01
SY061706
T42P99266K
UNII-T42P99266K
MFCD00150008
Methylene blue [USP]
METHYLENE BLUE [II]
CCRIS 9312
AC-8349
61-73-4 (anhydrous)
CHEMBL550495
[7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium chloride

MDL Number

MFCD00012111

FAQ

What is Methylene blue trihydrate (CAS: 7220-79-3)?

Methylene blue trihydrate is a chemical compound with the formula C16H18ClN3S·3H2O. It is a deep blue crystalline solid that is commonly used as a dye and a photosensitizer. The compound is known for its ability to absorb light and generate reactive oxygen species, making it valuable in various scientific and industrial applications.

What are the main uses of Methylene blue trihydrate (CAS: 7220-79-3)?

Methylene blue trihydrate is widely used in pharmaceuticals as an antidote for methemoglobinemia, in medical diagnostics for urine tests, and in research for its photodynamic properties. It also finds applications in textile dyeing, water treatment, and as a fungicide in agricultural settings.

Is Methylene blue trihydrate (CAS: 7220-79-3) safe?

Methylene blue trihydrate is generally considered safe when used as directed. However, it can be toxic if ingested in large amounts or inhaled. Proper handling, including the use of protective gear, is recommended. Safety standards ensure its controlled use in medical and industrial contexts to minimize risks.

How should Methylene blue trihydrate (CAS: 7220-79-3) be stored?

Methylene blue trihydrate should be stored in a cool, dry, and light-protected place. It is typically kept in airtight containers to prevent moisture absorption. The recommended storage temperature is between 15°C to 25°C, and it should be stored away from strong oxidizing agents to maintain stability and efficacy.